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Ratio can't be negative, but ROI can. Positive ROI is the percentage of the ratio being 1 or higher. Negative ROI is the percentage of the ratio being less than
by benjam47 6y ago
Ratio can't be negative, but ROI can. Positive ROI is the percentage of the ratio being 1 or higher. Negative ROI is the percentage of the ratio being less than 1.
Or, from a "common sense" perspective, if I spent $1000 on advertising, and earned $100 in revenue from that investment, my ROI is definitely negative.